It depends on what version of Wiiscrubber you use ( the later ones takes away ALOT more than the early ones) and what region they are.. and as Knocks said, it's built on the same idea as Wiiscrubber so yeah, they should be about the same size, not saying they are the same, but around (so it's a good guideline of what games are gonna take less space for those of you with smaller drives).